What kind of sound quality are you expecting and how much do you want to spend?
I paired the front and rear inputs to the factory harness; from testing the left and right each appear to provide signal to the sub and rear speaker. The red (switched-power) wire on the harness connector mates to the blue (antenna) wire; that turns on the amps when the ignition is on.
-jason
So in the most simple terms, how exactly would you just put a headphone jack to an iPod without a head unit.
Man you guys are way more advanced than I was thinking. I am okay with electronics but I am pretty lazy so I went with the simplest and cheapest iPod connectivity of all:
The sound quality isn't that great, but in terms of plug-and-play this is as easy as it gets.